/* 
@media screen and (max-width: 1920px) {
  .container{
    text-align: center;
    position: relative;
  }
  .background-img{
    margin: 0 auto;
    display: inline-block;
  }
  .background-img img{
    width: 1920px;
  }
} */
/**********迎宾界面**********/
.container{
  width: 1440px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.background-img{
  margin: 0 auto;
  display: inline-block;
}
.background-img img{
  width: 1440px;
}
.left-box{
  position: absolute;
  left: 70px;
  top: 107px;
  width: 800px;
  height: 650px;
  background-color: #AABDB9;
}
.time-box{
  position: absolute;
  right: 92px;
  top: 110px;
  width: 410px;
  height: 80px;
  color: #fff;
  font-size: 55px;
  line-height: 80px;
  text-align: center;
}
.date-box{
  position: absolute;
  right: 230px;
  top: 200px;
  width: 210px;
  height: 40px;
  color: #fff;
  font-size: 22px;
  line-height: 40px;
  text-align: center;
}
.leader-box{
  position: absolute;
  right: 115px;
  top: 280px;
  width: 410px;
  height: 40px;
  color: #fff;
  font-size: 26px;
  line-height: 40px;
  text-align: center;
}
.leader-box span{
  font-size: 36px;
}
.head-img{
  position: absolute;
  right: 114px;
  top: 334px;
}
.head-img img{
  width: 370px;
  height: 200px;
}
.meeting-box{
  position: absolute;
  right: 225px;
  top: 600px;
  width: 146px;
  height: 40px;
  color: #fff;
  font-size: 26px;
  line-height: 40px;
  text-align: center;
}
.meeting-detail{
  position: absolute;
  left: 965px;
  top: 645px;
  color: #fff;
  font-size: 16px;
  width: 380px;
  line-height: 20px;
  text-align: left;
}
/*************************/



/*********登录界面*********/
.login-box{
  width: 100%;
  position: relative;
  height: 100%;
  overflow: hidden;
}
.login-box .bj{
  width: 100%;
}
.input-box{
  width: 350px;
  height: 400px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: -200px;
  margin-left: -175px;
  background: #000;
  opacity: 0.8;
}
.input-box .logo{
  text-align: center;
  padding: 20px 0 15px 0;
}
.input-box .title{
  text-align: center;
  font-size: 24px;
  color: #fff;
  font-weight: bold;
  padding: 0 0 20px 0;
}
.input-container p{
  padding: 8px 0;
  text-align: center;
}
.input-container .name,
.input-container .password{
  width: 280px;
  margin: 0 auto;
  height: 35px;
  line-height: 35px;
  padding: 0 40px 0 10px;
  border: 2px solid #F5AD00;
  border-radius: 5px;
  box-sizing: border-box;
}
.input-container .name{
  background-image: url('../img/user.png');
  background-repeat: no-repeat;
  background-position: 247px center;
}
.input-container .password{
  background-image: url('../img/password.png');
  background-repeat: no-repeat;
  background-position: 247px center;
}
.input-container .checkbox{
  width: 20px;
  height: 20px;
}
.input-container .check{
  padding: 8px 35px;
  text-align: left;
  color: #fff;
  cursor: pointer;
}
.input-container .submit{
  width: 280px;
  height: 35px;
  border-radius: 5px;
  background: #F5AD00;
  line-height: 35px;
  text-align: center;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}
/*************************/




/*********后台系统**********/
.system {
  min-width: 1200px;
}
.system .top-nav{
  width: 100%;
  height: 90px;
  background: #222;
}
.system .top-nav .left{
  float: left;
  vertical-align: middle;
  color: #fff;
  padding: 0 0 0 30px;
  line-height: 90px;
  font-size: 22px;
}
.system .top-nav .left img{
  vertical-align: middle;
  width: 40px;
  padding: 0 15px;
}
.system .right{
  float: right;
  color: #fff;
  font-size: 14px;
  padding: 20px 40px 0 0;
}
.system .right img{
  vertical-align: text-top;
  padding: 0 10px;
  width: 15px;
}
.system .center{
  font-size: 14px;
  padding: 5px 0 0 0;
}
.system .center span{
  padding: 0 10px;
  cursor: pointer;
}
.system .left-container{
  float: left;
  width: 200px;
  /* height: 90vh; */
  background: #2e3137;
  position: relative;
}
.system .left-container .shadow{
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 100%;
  background: #3b4146;
  z-index: 0;
}
.system .left-container .menu-tree{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  z-index: 99;
}
.system .left-container .menu-tree ul{
  background: #fff;
  font-size: 14px;
  line-height: 30px;
  padding: 0 0 0 45px;
}
.system .left-container .menu-tree ul li{
  padding: 0 0 0 10px;
  position: relative;
}
.system .left-container .menu-tree ul li.active::after{
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  margin-top: -7px;
  width: 5px;
  height: 15px;
  background: #231815;
}
.system .right-container{
  padding: 0 0 0 200px;
  /* height: 90vh; */
  width: 100%;
  box-sizing: border-box;
}
.system .menu-tree div{
  height: 50px;
  line-height: 50px;
  background: #3f454a;
  color: #fff;
  font-size: 16px;
  padding: 0 0 0 30px;
  margin-bottom: 10px;
  box-shadow: 0px 0px 5px 1px #333;
  cursor: pointer;
}
.system .menu-tree div img{
  width: 20px;
  margin: 15px 5px 0 0;
}
.system .menu-tree .click-box img{
  transform: rotate(90deg);
}
.system .menu-tree ul{
  display: none;
}
.system .menu-tree ul li{
  cursor: pointer;
}
.system .menu-tree .view-box{
  display: block;
} 
/*************************/